/* ============================================
   LAYOUT — Grid System, Containers, Responsive
   ============================================ */

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-4);
}

.container-narrow {
  max-width: 800px;
}

.container-wide {
  max-width: 1400px;
}

/* Section spacing */
.section {
  padding: var(--space-16) 0;
}

.section-lg {
  padding: var(--space-24) 0;
}

.section-sm {
  padding: var(--space-10) 0;
}

/* Flex utilities */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-end { justify-content: flex-end; }
.gap-1 { gap: var(--space-1); }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

/* Grid */
.grid {
  display: grid;
  gap: var(--space-6);
}

.grid-2 { grid-template-columns: 1fr; }
.grid-3 { grid-template-columns: 1fr; }
.grid-4 { grid-template-columns: 1fr; }

/* App catalog grid — static mode (logged-in users) */
.app-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

/* App catalog carousel mode (visitors) */
.app-grid.app-carousel-mode {
  display: block;
  overflow: hidden;
  position: relative;
}

.app-carousel-wrapper {
  overflow: hidden;
  position: relative;
  padding: var(--space-4) 0;
  mask-image: linear-gradient(90deg, transparent 0%, black 5%, black 95%, transparent 100%);
  -webkit-mask-image: linear-gradient(90deg, transparent 0%, black 5%, black 95%, transparent 100%);
}

.app-carousel-track {
  display: flex;
  gap: var(--space-6);
  width: max-content;
  animation: carousel-scroll 60s linear infinite;
}

.app-carousel-track .app-card {
  flex: 0 0 320px;
  min-width: 320px;
  max-width: 320px;
}

@keyframes carousel-scroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

@media (min-width: 640px) {
  .app-carousel-track .app-card {
    flex: 0 0 340px;
    min-width: 340px;
    max-width: 340px;
  }
}

@media (min-width: 1024px) {
  .app-carousel-track .app-card {
    flex: 0 0 370px;
    min-width: 370px;
    max-width: 370px;
  }
}

/* Text alignment */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

/* Margin utilities */
.mx-auto { margin-left: auto; margin-right: auto; }
.mt-2 { margin-top: var(--space-2); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }
.mb-2 { margin-bottom: var(--space-2); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }

/* Responsive breakpoints */
@media (min-width: 640px) {
  .container {
    padding: 0 var(--space-6);
  }

  .grid-2 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .app-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .container {
    padding: 0 var(--space-8);
  }

  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .grid-4 { grid-template-columns: repeat(3, 1fr); }
  .app-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 1280px) {
  .grid-4 { grid-template-columns: repeat(4, 1fr); }
}

/* All Apps CTA button container */
.all-apps-cta {
  display: flex;
  justify-content: center;
  margin-top: var(--space-8);
}
.all-apps-cta .btn {
  font-size: var(--text-base);
  padding: 0.875rem 2.5rem;
  gap: var(--space-3);
  animation: allApps-pulse 2s ease-in-out infinite;
}
@keyframes allApps-pulse {
  0%, 100% { box-shadow: 0 4px 15px rgba(60, 145, 255, 0.3); }
  50% { box-shadow: 0 6px 30px rgba(95, 30, 190, 0.5); }
}

/* Static grid mode for "View All Apps" */
.app-grid.app-grid-static {
  display: grid;
}